Communication is in most assistant professions essential means of work. This thesis presents communication as a two-way relationship between the social worker and the user so as to emphasize the meaning of communication in social work. Therefore, verbal and non-verbal communication will be clarified in more detail as important factors of interpersonal communication, listening skills and speaking, which present the foundation of successful work of social workers. Further in the text the role of communication in social work is presented as well as difficulties recognized by social workers. The main goal of this thesis is to raise awareness about aspects of communication in social work, especially in direct contact with users, with purpose of strengthening professionals in making important changes. Finally, the thesis shows how communicating skills are crucial in all aspects of social work where social workers who use and understand the structure and rules of communicating with users teach us the importance of learning and improving communication skills at the professional level.